Transmission



A. P. ARMINGTO-N.

TRANSMISSION. P APPLICATION FILED MAY 21, 1920- 1,412, 1 57-. Patented Apr. 11,1922.

' I 2 SHEETSeSHEET 1.

A. P. ARMINGTON.

TRANSMISSION.

M P LICATION FILED MAY 21, 1920.

1,412,157, 1 V Patented Apr. 11, 1922.

2 SHEETS-SHEET 2.

' TBANSMISSIlON.

'ia aim.

. To all whom it may concern: i

Be it known that I, ARTHU P. Antimo- TON, a citizen of the United States. residing ,at lVicklifle. inthe county] of Lake and] State of Ohio, have invented a certainnew and useful Improvement in Transmissions, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to transmissions advantages will appe arf as"the description proceeds. In the accompanying drawings, wherein I have shown an illustrative embodiment of my invention, Fig. 1 is atop planjview, with parts broken away, of my transmissionv applied to v a tractor; Fig. 2 1s an enlarged side elevation of my transmission and a portion of the tractor to which itis applied; Fig. 3 is'asectional view taken on the, line 3-8 of Fig. 2; Fig. 4L isa perspective view of mechanism for disengaging the rear-wheeldrive from the stationary-power drive; and Fig. 5 is a sectional view of the friction drive disengaging means taken 'on thel1ne-5- 5 of F g. 3.

Describing by reference. characters the parts shown in the accompanying drawings,

1 indicates a counter-shaft housing which is rigidly connected to a gear and clutch housing 2 at the point designated 3. The housing 1 is preferably disposed parallel with the rear axle 4.. and the combined housings are detachably fastened to the tractor frame 5 by the flange projections 6 and the bolts 7. A counter-shaft 8 is rotatably supportedwithin the housing 1' by the roller bearings 9 and 10, hearing 9 being fitted into the outer end of tubular housing 1 and the bearing 10 in the tubular projection 11 disposed on the housing 2 in axial alignment with the slip joint 3. Suitable cover plates 12, 12 serve to protect the bearings from foreign matter and retain the lubri- Application fl ed May" 21,

Smifiwfiwefeaers Patent "Patented Arr; 11, 1922.

1920. Serial No. 383, 02" 7 1 cant within the housings.- jAjdrivepinion meshes witha' large gear 14 whichds o-peratively; connected. through af suitable fdif '13 is fastened to one end 'of -t he shaft 8 and ferential mechanism 15 tofthe rear axle 1 to a drive the rear wheels '16 and 17 The" other I I u I l u b s 1 disposed. within the. housing 2.

' A clutch Shaft 20,; Fig. 3) 'srotatably end of shaft 7 is fitted with" a 'ear .18 which and slidably supported in roller bearings 21, 21 and 1s positioned parallel with the counter shaft 8 and rear axle 't. The -inner end of shaft 20 has secured thereto, a friction disk 22 which is adaptedto "contact with a frictiondrive 'whe el 23 slidably mounted on the drive shaft 2.42; which is journalled, at one end, in a, bearing '25 mounted in jthe; tubularbasing' 1,I and-'at the other end, said shaft operatively ;c on-.

nected to the engine 26. 'A 'pinion 27 -issplin'ed on shaft 20and is movable intoa'n d 5 outof. meshwith gear 18 by means of a:

forked arm 28 engaging a gr0oved-hub eigtension-29 of'pinion 27. The arm 28 is' r'eciprocable along a guide rod 30, whichis" disposed within-the 'casing'2 in parallel re- 1 lat-ion to said shaft, by means of 'alever 31 engaged at one end in thesl'otted head 32 of said arm and at its other end,"said lever is fastened to a; vertical shaft 33' which is jon'rnalled in a suitable bossB l-on the'housing cover. operatinghandle 3 5j'is: s ecured to the upper end of said shaft"tofacilitate rotation thereof; and is engageable' in either ofthe grooves 36. 3am hold saidflgearin the engaged =o'r"disengaged position. I V The shaft 20"and frictiondisk 22"arc moved' transverselyto'engage the friction 4 wheel '28 by means of a lever 38 fastened to a vertical pivot shaft 39, which. is journalled at its lower end in the housing and at its upper end in the cover therefor. 1k forked arm 40 is mounted on the lower end of said pivot shaft and engages studs 4:1..i1 projecting from a'split collar 12- mounted in a grooved collar 43 on shaft 20. A spring 415 connected between-the lever 38 and the frame of the machine, tendsto hold the disk 22 into engagement with the friction.

wheel 23v and disengagementof said disk is accomplished from the operators seat by means of a pivoted handle 16 and a link connection 47 to the lever 38. It will 'be observed that by swinging the handle 46 rearwardly to its maximum position, as

shown in Fig. ,2, the pivotalpoint- 48 of the link connection 47 will describe an arc and be positioned below the pivotal point 49 of the handle, thereby to retain'the parts in inoperative position.

In operation, thehandle 35 is rotated to engage pinion 27 with gear 18 and the handle 46 thrown forward to engagefriction' disk 22 with drive wheel thereby to operatively connect the engine with the rear wheels to drive the tractor.

.If it is desired to use the tractor as a stationary power plant, handle 46 is thrown 'rearwardly to disengage the friction drive extremity thereof.

Having thus described my invention, what I claim is 1. The combination with a main frame. of a casing detachably mounted on said frame, said casing being composed of two interfitting members, one disposed at right angles to the other, a shaft journaled in each of said members, said shafts being arranged in parallel relation. one of said shafts having a friction disk upon one end and a pulley upon the opposite end and a pinion intermediate said disk and pulley, a gear mounted upon the other of said shafts and meshing with said pinion, and means for disengaging said pinion from said gear.

2. In an apparatus of the character set forth, the combination with a main frame having a source of power mounted thereon.

,of a casing mounted on said frame, a shaft journaled in said casing and opcratively connected to the rear axle of said vehicle. a sec- 0nd shaft journaled in said-casing and opdrive wheel carried by said power shaft, a

friction disk fastened toan end of said second shaft and adapted to engage said friction drive wheel, and means for sliding said second shaft to engage and disengage said friction disk with said drive wheel.

3. In a vehicle of the character set forth, the vcombination with a main frame, of a unit transmission assembly detachably connected thereto, said assembly including a casing composed of two interfitting n1embers, one disposed at right angles to the other and one of said members being disposed parallel to the rear axle of said vehicle, a shaft journaled in each of said members, a source of power carried by the said frame, a drive shaft having one end connected to said source of power and the other end journaled in said casing, and driving connections between said drive shaft and said rear axle including the shafts journaled in said casing.

at. In a vehicle of the character set forth, the combination with a main frame, of a unit transmission assembly detachably'connected thereto, said assembly including a casing composed of two interfitting members, one disposed at right angles to the other and one of said members being disposed parallel to the rear axle of said vehicle, a shaft journaled in each of said members, said shafts being arranged parallel to the rear axle of said vehicle. a gear carried by one of said shafts, a pinion slidably mounted on the other of said shafts and adapted to engage with said gear, a guide rod disposed within said casing and arranged parallel with said shafts, a yoke slida-bly supported on said guide rod and engaged with said pinion, a rod projecting from said casing adjacent said yoke, a leverconnected to the inner end of said rod andengaged with said yoke, and a lever connected to the outer end of said rod. 7

In testimony whereof, I hereunto affix my signature.

ARTHUR P. AR-MINGTON. 

